The article presents a frame technology for a pusher tug, the construction of which was developed within the framework of the INCOWATRANS project. The technological division was made using a so-called mass criterion. The weight of the biggest sections does not exceed 12 tonnes, which allows the steel hull to be built using even as small a crane as the truck crane of approximate carrying capacity of 20 tonnes. Subsequent building stages are illustratively shown in the figures.